TUAW has this rumour, which, if true would be really interesting in one way, but in another not a big shock.
Apple have already made iMovie available for the iPhone 4, so why not some of the other applications in the iLife suite?
One that has been talked about over and over is Garageband. Could that become iOS compatible?
Then there’s the talk of a mystery new app in the suite and the possibility that it’ll be an App Inventor thing in response to Google’s site for making your own Android apps.
I guess we won’t know anything until they actually announce it, and there’s no news on that at all.